I have the insight CS, but it is just gauges. It is a general consensus that the shift on the fly programmers are not too friendly with the torqueshift transmission behind the 6.0. IF you want a tuner, get an SCT with custom tunes. I have tunes from Innovative diesel, and Gearhead Automotive Performance. I run Gearheads SRL as my everyday driver, the power is killer as well as the shifting, and the mileage. The tow tune from innovative is really good, but I really don't care for the other tunes I have from them.